Devices STM32L4 Series STM32L4S9 STM32L4S9 STMicroelectronics Devices 5 STM32L4S9AIIx STM32L4S9 Cortex-M4 STM32L4S9VITx STM32L4S9 Cortex-M4 STM32L4S9ZIJx STM32L4S9 Cortex-M4 STM32L4S9ZITx STM32L4S9 Cortex-M4 STM32L4S9ZIYx STM32L4S9 Cortex-M4